The temperatures in Vestmanna in September are usually low and can range between 10°C and 11°C.
You can expect rain for roughly half of the month of September in Vestmanna. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Vestmanna in September 2025.
If you’re planning to visit Vestmanna in the near future, we highly recommend that you review the 14 day weather forecast for Vestmanna before you arrive.
Temperatures
11° / 10°
Rainy Days
9
Snowy Days
0
Dry Days
21
Rainfall
114
mm
Sun Hours
6.6
Hrs
